Adding mechanism for cash-registers, &amp;c.



F. L. FULLER. v ADDING MECHANISM FOR CASH REGISTERS, dzo. APPLICATION FILED FEBJS, 1907. RENEWED APR. 9. 1909- 9311,1 33, Patented Jan-17,1911.

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'Attest: Inventor:

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F. L. FULLER. ADDING MECHANISM FOR CASH BEGISTERS,'&0. APPLICATION rum) 1113.5, 1907. nnnwm) APR. 9. 190a.

Patented Jan. 17, 1911.

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F. L. FULLER.

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Patented Jan,17,'1911.

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F. L. FULLER.

ADDING MECHANISM FOR CASH REGISTERS, 6m. APPLICATION rum) Innis, 1901. nnnnwnn An. 9. 1909.

Patented Jan. 17,1911.

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FREDERICK L. FULLER, OF TRENTON, NEW JERSEY,

CASH REGISTER COMPANY, OF DAYTON,

PORATED IN 1906.)

ASSIGNOR TO THE NATIONAL OHIO, A CORPORATION OF OHIO, (INCOR- ADDING MECHANISM FOR CASH-REGISTERS, 8w.

Application filed February 5, 1907, Serial No. 355,817. Renewed April 9, 1909.

Specification of Letters Patent.

Patented Jan. 17, 1911.

Serial in. 488,979.

To all whom it may concern:

Be it known that I, FREDERICK L. FULLER, a citizen of the United States, residing in the city of Trenton, in the State of New J ersey, have invented certain new and useful Improvements in Adding Mechanism for Cash-Registers, &c., of which the following is a specification, reference being had to the accompanying drawings, forming a part hereof.

This invention relates to adding mechanisms for cash registers and the like and has for its object to produce a mechanism of this character which shall be both positive and definite in action, without liability to overthrow of any of the adding wheels, while'at the same time the totalizer shall be simple in construction and easily applied to and removed from the cash register or other machine in connection with which it is em ployed.

In accordance with the invention the totalizer or adding mechanism is moved into driving engagement with the main driving gears of the register or other machine and is moved out of engagement therewith during the carrying or advance of each number wheel or disk one step or number through the completion'of the rotation of the wheel of next lower denomination.

Other features of the improvement will be more particularly referred to hereinafter.

The invention is illustrated as embodied in a convenient and practical form in the accompanying drawings, in which' Figure 1 is a view partly in transverse section and partly in elevation of so much of a cash register of a well known type as is necessary to enable the application of the invention to be understood, the improved adding mechanism itself being shown in end elevation. Fig. 2 is a partial view similar to Fig. 1, but showing the adding mechanism disengaged from the driving gear. Fig. 3 is a rear elevation of the adding mechanism, showing also the main driving shaft of the register. Fig. 4 is a detail view of a portion of the totalizer or adding mechanism in longitudinal section. Fig. 5 is a detail view in section on the irregular plane indicated by the line 55 of Fig. 3. Fig. 6 is a similar view but showing the parts in slightly different positions. Fig. 7 is a detail view in section on the irregular plane indicated by the line 77 of Fig. 3. Fig. 8 is a detail view in perspective of the cam shaft. Fig. 9 is a detail inside elevation showing differential mechanism and mechanism for restoring and latching the same. i

In the drawings the invention is illustrated as applied to a cash register of a well known type described in Patent No. 915,090 granted to Frederick L. Fuller, March 16, 1909. The details of construction of the cash register are not material to the present invention, except so far as the register is provided with a series of main driving gears suitably mounted in the frame a and severally rotated in the operation of the register to an extent proportionate to the number inclicated by the register and to be added by the totalizer to the previous total recorded upon the totalizer. One of such driving gears is shown at 6, being itself driven in one direction by the spring 6 and being restored to normal position while the spring 6 is recharged by manually operated devices shown in Figs. 1 and 9. A manually operable lever c is fast to a shaft 0 which also has fast thereto a pair of arms 0 carrying a restoring rod p extending across the path of movement of tails q of a set of segment gears 1 These segment gears mesh with a set of gears b geared to the set of driving gears b by pinions b and shafts 6*, and each is provided with a pin 8 for engagement with a stop t. Rotation of gears b by action of springs Z) is normally prevented by the stops t, and pawls a engaging gears b. The stops 2? are loosely pivoted on a shaft 1) and are each integral with an arm 10 curved downwardly in the rear of pins a; on value keys 1 Therefore when any value key is depressed the arm to in the respective bank is rocked inwardly thereby rocking stop t out of the path of pin 8 for the segment 1' of such bank but the segment is still prevented from moving by reason of the engagement of pawls u with gears .71. The pawls a are all fast to the shaft o which also has rigidly secured thereto an arm 2 extending across the rear of a pin .2 on a release key .2 Therefore action of gears Z) for the banks in which keys have been depressed does not take place until the release key is depressed and the gears b for banks in which keys are not depressed remain in their normal position by reason of their respective stops 2? not being moved out of engagement with pins 8. The value keys are depressible into the paths of pins 1" carried by the segments 1 and thereby serve to regulate the extents of movement of the segments and driving gears 5. They are held in their depressed position by spring actuated detents 00 until the operation of lever c preparatory to another registration. Operation of lever c by rocking arms 0 of shaft 0 causes rod p to engage the tails g of segments 1" rocking the segments back to original positions thereby tensioning springs Z) and by means of a slight overthrow at the end of 'its stroke momentarily raises detents X thereby releasing the depressed keys which are then driven to their outer positions by coiled springs surrounding their shanks. The rod p has a slight free movement at the beginning of its stroke before engaging any of the tails g in order to allow time for disengaging the totalizer from gears Z) before return movement of the gears.

The totalizer is arranged so as to be normally in operative engagement with the driving gears Z) so that the several number wheels thereof shall be driven forward by their respective driving gears, and so as to be moved out of operative engagement therewith, during the backward rotation of the driving gears, if they have such backward rotation, and as to permit the carrying from one number wheel to the neXt in order while the number wheels are out of operative engagement with the driving gears. As shown,

the totalizer is supported by a frame which comprises end plates (Z, cl, rods (Z (Z and (Z fixed in the end plates and a bar d The frame is mounted to swing on the crank shaft 0 and the bearings of the end plates (Z, d on the shaft are respectively provided with removable caps (Z so that the adding mechanism as a whole can be easily applied to or removed from the register or other machine with which it is used. The frame is pressed normally in such a direction as to throw the totalizer out of engagement with the driving gears and for this purpose the springs b which drive the gears 79 may be attached to the lower edge of the bar (F, below the axis of oscillation of the frame.

For the purpose of moving the totalizer 'into operative engagement with the driving wheels and maintaining it there and for permitting the disengagement of the adding mechanism from the driving gears, there is mounted in the frame of the totalizer a cam shaft 6 provided at one end with a pinion e which is engaged by a gear segment a fixed on the crank shaft 0 so as to move therewith. The shafte also carries a cam 6 which cooperates with a stop 6 on the main frame a, so that when the cam e is in the position shown in Fig. '1, the totalizer is held in operative engagement with the gear wheels 6, While if the cam e be turned to the position represented in Fig. 2, the totalizer will be permitted to swing from the driving gears I) out of operative relation therewith, under the influence of the springs I), as shown in Fig. 2. The cam e bears always against the stop 6 and the springs b are maintained always under tension. The cam shaft 6 has a further function which will be referred to hereinafter, but its independent utility in rocking the totalizer into mesh will be apparent from the above.

Mounted loosely on the rod d of the adding frame are the number wheels or disks f, 7" etc., bearing the figures from zero to 9 inclusive upon the periphery of each. Secured to each number wheel of the totalizer to rotate therewith is a driving pinion g which is adapted to be engaged by the corresponding driving gear 5 and is also engaged by a hold pawl g mounted on the rod d to prevent backward rotation of the pinion. Each number wheel above the units wheel has also secured to it to rotate therewith a carrying pinion h, preferably on the opposite side of the number wheel from the driving pinion g. Each number wheel is also provided with a carrying pin 2' to cooperate with a four-point wheel or star wheel is which is mounted to rotate on the rod d of the frame and has secured thereto, to rotate therewith, a notched detent wheel Z for cooperation with a detent spring Z, and a second four-point wheel or star wheel m which cooperates with the carrying pinion h for the next number wheel in order. The detent wheel Z is suitably notched, as is well understood, and engaged by the spring Z so as to prevent accidental movement of the four-point or star Wheels.

The cam shaft 6 is provided with a series of cam disks n, n, etc., cooperating with the several star-wheels m and spirally set or notched so that in the rotation of the cam shaft 6 the several cam disks shall act in succession upon the respective star wheels m.

l/Vhile the totalizer is in operative engagement with the driving wheels, the rotation of the number wheel through its drivlng pinion 9 causes the pin 2' carried by the number wheel to act upon the star wheel 70 so as to move the star wheel m from the position shown in Fig. 5 to the position shown in Fig. 6 in which the lower point or tooth of the wheel m has been moved into the notch of the disk a far enough to be engaged by the toe of the cam when the cam is rotated.

Itwill be understood that when the parts are in the position shown in Fig. 5 both of the points of the wheel m which are adjacent to the cam disk 12 are clear of its periphery so that the cam disk can rotate freely with out disturbing the star wheel until it is moved into the position shown in Fig. 6. As soon as the forward movement of each of the driving gears b has been completed, the advance of each of the number wheels having been thereby accomplished, the crank c is operated for the purpose of restoring the driving gears b and their connections to normal position and recharging the springs Z). The beginning of the movement of the crank throws the high part of the cam c from the stop 6* and permits the totalizer to be moved away from the driving wheels Z) and the pinions 9 out of engagement therewith, so that the totalizer is not affected by the movement of the driving gears 7) back to normal position.

If any of the number wheels f, f, etc., was made to complete a rotation during the preceding forward movement of the driving gear Z), the carrying pin 2' of such number wheel shifted the star wheels 75 and m from the position shown in Fig. 5 to the position shown in Fig. 6, as already described. The continued movement of the crank shaft, after the disengagement of the numbering mechanism from the driving gears, then causes the toe of each cam disk n, 11., etc., in succession to engage the proximate point of the corresponding star wheel m, if it has been shifted as described, and to produce a further forward rotation of such star wheel, as clearly shown in Fig. 7, carrying with the star wheel m the star wheel is and the detent wheel Z. The further movement of the star wheel m causes the tooth thereof adjacent to the pinion h to engage such pinion and rotate it through one step, thus advancing the number wheel carried with such pinion it through one space, thus representing the'increase of the corresponding denomination due to the addition of ten units to the next lower denomination.

The spiral arrangement of the cams n, 72, etc., as shown in F ig. 8, provides for the carrying from a wheel of one denomination to the wheel of the next higher denomination after the carrying has been effected for all the wheels of lower denominations. During the continued movement of the crank shaft and parts connected therewith, after the carrying has been effected, and during the return movement of the crank shaft or connected parts, the several cam disks 12, n, etc., move without disturbing the star wheels which are indeed locked from further accidental movement by the cooperation of the high periphery of the cam disks with two points of the corresponding star wheel. No further movement of any of the star wheels takes place until, as already described, one

or more of the star wheels has been advanced by the rotation of the number wheels. As the crank shaft returns to normal or zero position and the parts of the machine are placed in readiness for another operation cam e cooperating with the stop 6*, throws the totalizer back into engagement with the driving gears.

It will be understood that various changes in details of construction and arrangement can be made to meet varying conditions of use and that the invention is not restricted to the precise construction and arrangement shown and described herein.

I claim as my invention:

1. The combination with driving gears, springs connected to the driving gears and charged by movement thereof in one direction and a totalizer comprising number wheels actuated by the driving gears and carrying mechanism, of a movable frame supporting the totalizer, said springs acting normally upon the frame to move the totalizer out of operative relation with the driving gears, and means to move the frame with the totalizer into operative relation with the driving gears and to actuate the carrying mechanism when the adding mechanism is out of operative relation with the driving gears.

2. The combination with driving gears, springs connected to said driving gears and charged during the movement of the driving gears in one direction and a totalizer comprising number wheels actuated by the driving gears and carrying mechanism, of a frame supporting the totalizer and mounted to swing upon an axis parallel with the axis of the driving gears, said springs being connected to the frame and acting upon the frame to swing the totalizer out of operative relation with the driving gears and means to swing the frame into operative relation with the driving gears and to actuate the carrying mechanism when the totalizer is out of operative relation with the driving gears.

3. The combination with driving gears, springs connected to said driving gears and charged by movement thereof in one direction and a totalizer comprising number wheels actuated by the driving gears and a carrying mechanism, of a movable frame supporting the totalizer, said springs acting normally upon the frame to move the totalizer out of operative relation with the driving gears, a cam to move the frame with the totalizer into operative relation with the driving gears and means to actuate the carrying mechanism when the totalizer is out of operative relation with the driving gears.

1. The combination of driving gears, totalizer, carrying mechanism, a movable frame for supporting the totalizer and the carrying mechanism and devices carried by the frame for actuating the carrying mechanism and for moving the frame with relation to the driving gears.

5. The combination of driving gears, totalizer, carrying mechanism, a swinging frame mounted upon an aXis parallel with the axis of the driving gears, a shaft mounted in said frame, means carried by said shaft for actuating the carrying mechanism, and means carried by said shaft for moving the frame with relation to the driving gears.

6. The combination of driving gears, totalizer, carrying mechanism, a shaft parallel with the axis of the driving gears, a swinging frame mounted on said shaft and supporting the adding mechanism and the carrying mechanism, a cam shaft mounted in said frame and provided with means to actuate the carrying mechanism and with a cam to move the frame with relation to the driving gears and gearing between the first named shaft and the cam shaft.

7. In a machine of the class described, the combination with driving gears, of a swinging frame, a totalizer and a transfer operating shaft carried in said frame, an operating device for said transfer shaft, and a cam carried by said transfer shaft and serving when said shaft is rotated by the operating device to engage said totalizer with said driving gears.

8. In a machine of the class described, the combination with a swinging frame, and a totalizer and a transfer operating device therefor carried by said frame, of an operating mechanism for said transfer device, a cam moved by said transfer operating mechanism, a stationary piece engaged by said cam, and operating devices for said totalizer into connection with which said totalizer is moved by said cam.

9. In a machine of the class described, the combination with a swinging frame and a totalizer and an actuating shaft both carried by said frame, of a cam carried by said actuating shaft, a stationary element with which said cam engages and a main operating device for driving said actuating shaft.

10. In a machine of the class described, the combination with a movable frame, and a totalizer and a frame actuating shaft, both carried by said frame, a cam carried by said actuating shaft, a stationary element with which said cam engages, a main operating device for driving said actuating shaft, and driving devices into connection with which said totalizer is moved by said cam.

11. In a machine of the class described, the combination with a movable frame, and a totalizer and a transfer operating shaft both carried by said frame, of a cam moved 'by said transfer shaft, a stationary element acted on by said cam, a main operating device for said transfer shaft, and driving devices into connection with which said totalizer is thrown by said cam.

12. In a machine of the class described, the combination with a swinging frame and a totalizer and transfer mechanism therefor, both carried in said frame, a device moved with said transfer mechanism and having connections for rocking said frame, a main operating device for actuating said transfer mechanism and said frame rocking device, and driving mechanism into connection with which said totalizer is thrown by rocking said frame.

13. In a machine of the class described, the combination with a swinging frame, and a totalizer and a frame rocking device, both carried in said frame, a stationary element with which said frame rocking device engages, a main operating device for driving said frame rocking device, and driving mechanism for said totalizer into connection with which said totalizer is thrown by rocking said frame.

14:. In a machine of the class described, the combination with a movable frame, and a totalizer and a frame actuating device both carried by said frame, of a stationary element with which said frame actuating device engages, a main operating mechanism for driving said frame actuating device, and driving mechanism for said totalizer and into connection with which said totalizer is thrown by actuating said frame.

15. In a machine of the class described, the combination with a movable frame, and a totalizer and a transfer actuating device, both carried by said frame, of a frame adjusting element moved with said transfer actuating device, a stationary element coacting with said frame adjusting element, a main operating device for driving said transfer shaft, and driving devices for said totalizer, and into connection with which said totalizer is thrown by adjusting said frame.

16. In a machine of the class described, the combination with a movable frame, and a totalizer and a frame actuating shaft, both carried by said frame, a cam carried by said actuating shaft, a stationary element with which said cam engages, a main operating device for driving said actuating shaft, and driving devices into connection with which said totalizer is moved by said cam, said cam arranged to hold the totalizer normally in mesh with said driving devices.

17. In a machine of the class described, the combination with a movable frame, and a totalizer, and a frame actuating shaft, both carried by said frame, a cam carried by said shaft, a stationary element with which said cam engages, a main operating device, driving devices into connection with This specification signed and witnessed which said totahzer is moved by said cam, this first of February, 190?. connections from said main operating device for restoring said driving devices to normal FREDERICK FULLER 5 position, and means whereby said main 210- Signed in the presence 01"i tuating device drives said frame actuating ELLA J. KRUGER,

shaft. AMBRosE L. OSHEA. 

